sh: oprofile: Fix up and extend op_name_from_perf_id().

op_name_from_perf_id() currently returns a local variable, which isn't
terribly productive. As we only handle a single PMU case for now, simply
allocate and free the string from the arch init/exit context and have
op_name_from_perf_id() hand back the cached string.

This also takes UTS_MACHINE in to account, given that we build for
multiple architectures.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/sh/oprofile/Makefile b/arch/sh/oprofile/Makefile
index e85aae73e3dc..ce3b119021e7 100644
--- a/arch/sh/oprofile/Makefile
+++ b/arch/sh/oprofile/Makefile
@@ -1,5 +1,7 @@
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
+CFLAGS_common.o += -DUTS_MACHINE='"$(UTS_MACHINE)"'
+
 DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
                 oprof.o cpu_buffer.o buffer_sync.o \
                 event_buffer.o oprofile_files.o \